ILLUSTRATIONS.[Norham Castle. After Turner]Frontispiece[Ben Loman. From a Photograph by J. Valentine]16[Clouds on Ben Nevis]38[Snow on the High Alps. From a Photograph by Mr. Donkin]64[A Storm on the Lake of Thun. After Turner]86[The Matterhorn. From a Photograph by Mr. Donkin]98[On a Glacier]116[Red Deer. After Ansdell]133[Chalk Rocks, Flamborough Head. From a Photograph by G. W. Wilson]152[Microphotographs illustrating Rock Formation]172[The Skaeggedalsfors, Norway. From a Photograph by J. Valentine]192[The Mer de Glace and Mont Buet. From a Photograph by Mr. Donkin]229[The Eruption of Vesuvius in 1872. From an Instantaneous Photograph]250[Columnar Basalt at Clamshell Cave, Staffa. From a Photograph by J. Valentine]280[Mont Blanc, Snowfields, Glaciers, and Streams]312[Mountain in the Yosemite Valley]336ILLUSTRATIONS II.[Fig. 1. Section Across the Weald of Kent and Surrey.]237[Fig. 2. The Highlands of Scotland on a True Scale (after Geikie).]237[Fig 1. The Ranges of the Great Basin, Western States of North America, Showing a Series of Great Fractures and Tilted Masses of Rock.]272[Fig. 2. Section Through Snowdon.]272[Sections of Mountain-ranges, Showing Their Structure and the Amount of Rock Worn Away]306PART I.THE MOUNTAINS AS THEY ARE.THE STORY OF THE HILLS.Part I.THE MOUNTAINS AS THEY ARE.